Green’s Dictionary of Slang

giblets n.

1. the male genitals.

[UK]J. Heywood Proverbs II Ch. iiii: Set the hares head against the gose jiblet. She is (quoth he) bent to fors you perfors / To know, that the grey mare is the better hors.

2. (also jiblets) the intestines; thus an obese man.

[UK]Browning Dramatis Personae, ‘Flight of the Duchess’ n.p.: Is pumped up briskly through the main ventricle, And floats me genially round the giblets [F&H].
[US]A.H. Lewis ‘Arabella Weld’ Sandburrs 165: ‘Have youse torn off that epitaph for his jiblets?’ asked the Undertaker, nodding towards the Deceased.
[US]R.L. Bellem ‘Latin Blood’ Speed Detective Aug. [Internet] So he proceeded to put a bullet in Barrio’s giblets, hoping I would take the rap.

3. by meton. one’s person .

[US]R.L. Bellem ‘Murder’s Mouthpiece’ Hollywood Detective Aug. [Internet] I still crave to know why you want me to guard a guy whose giblets you detest.

4. the vagina, esp. with pronounced labia.

[UK]Roger’s Profanisaurus 3 in Viz 98 Oct. 15: giblets n. A club sandwich; a ragman’s coat (qv).

In compounds

giblet pie (n.)

sexual intercourse.

rtw132 Maureen’s Lusty Confessions [Internet] Please, please have a bit of giblet pie, while you fondle my filthy pillows. I have desires to bump uglies with you in my dreams [...] Do you feel the same way??

In phrases

join giblets (v.) (also join jiblets, mix giblets) [1681 poss. fig. only; 1769 may poss. have been a mistakenly delicate translation of a piece of 18C coarseness]

1. to have sexual intercourse.

[UK]J. Taylor Juniper Lecture 213: The Marriage was ended and Giblets were joyn’d.
[UK]E. Hickeringill News from Colchester in Works (1709) I 399: Oh! there’s no Ho when Power makes Court’sey to Revenge, and joyns Giblets together.
[UK]N. Ward London Terraefilius V 25: She is running full Tilt to Beveridge’s Buttock-Ball to hop away Six-penny worth of Country Dances, and afterwards to join Jiblets with my Lord Swivelton’s Vallet.
[UK]Female Grievances debated 84: [They] pine and whine, and languish after a Person who, perhaps would be equally glad to join Giblets with them.
[UK]Stratford Jubilee II i 29: If your ladyship’s not engaged, what’s the reason but we may join giblets without any pribble-prabble? [OED].
[UK]Bridges Burlesque Homer (3rd edn) 300: This hubble-bubble they had coin’d, / By getting both their giblets join’d.
[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: To join giblets; said of a man and woman who cohabit as husband and wife, without being married; also to copulate.
[UK]Bridges Burlesque Homer (4th edn) II 46: [as cit. 1772].
[UK]Lex. Balatronicum [as cit. 1785].
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[UK]‘Jon Bee’ Dict. of the Turf, the Ring, the Chase, etc. 119: Mix giblets — to intermarry ― naturally or legally.
[UK]N&Q Ser. 7 IV 511: ‘To join giblets’ – This expression may occasionally be heard in this district, among the lowest and vulgarest, and has a very offensive meaning [F&H].
[UK]Farmer & Henley Sl. and Its Analogues.
[UK]Farmer Vocabula Amatoria (1966) 81: Coupler (se). To copulate; ‘to join giblets’.

2. to cohabit with or without being married.

see sense 1.
[UK]‘Jon Bee’ Dict. of the Turf, the Ring, the Chase, etc. 119: Mix giblets — to intermarry — naturally or legally.
[UK]Manchester Times 2 Oct. 7/4: The aimiable parties ‘join giblets’ without a comment being made by their relatives or neighbours.
[UK]Wrexham Advertiser 25 Mar. 5/2: A man [...] applied at the workhouse for a wife, and one of the inmates felt inclined to join giblets with him.

3. to form a partnership.

[UK]Leeds Times 3 Apr. 5/4: Let them join giblets by all means.
[UK]Huddersfield Chron. 20 Feb. 3/5: Let’s think no more about it, but join giblets to rob the natives here.
[UK]Preston Chron. 6 June 3/4: ‘Just the man,’ said the itinerant apothecary; ‘let us join giblets and we will make a good thing of it’.
[UK]Preston Chron. 15 Mar. 6/1: The Dissenting ministers want to join giblets; that’s the short of it.
[UK]Lichfield Mercury 29 May 6/4: Zo we shall join giblets, and set up our traps together.